Sia API for file sharing website or uploader

i have a question about your file sharing using sia hosting or sia API, i'm really stuck with this, can you help me because this project will be amazing but i'm stuck at this, it's similar file sharing too, Sia APi is really difficult for me. cause i'm plan to using 1000T for my company project that allow all my people click upload then generate link to them but sia API so complicated for me and i'm try hard and so headache :(
any tutorial about API step by step and not complicate ==
Please, i really need help Dev